Adjustable punch for setting artificial teeth



TTED STATES PATENT oFFioE.

SAMUEL MALLETT AND AUGUSTUS B. SMITH, OF NEW HAVEN, CONNECTICUT.

ADJUSTABLE PUNCH FOR SETTING ARTIFICIAL TEETI-I.

Specification of Letters Patent No. 15,139, dated June 17, 1856.

T0 all whom t may @Oncernf Be it known thatl we, SAMUEL'MALLETT and AUGUSTUS B. SMITH, of the city and county of New Haven, in the State of Gonnecticut, have inventeda new and useful lmprovement in Adjustable Punches for Dentists, &c.; and we do hereby declare that the following is a full, clear, and exact description of the construction, character, and operation of the same, reference being had to the accompanying drawings, which make a part of this specification, in which- Figure 1 is a perspective view of the adjustable punch ready for use. Fig. 2 is a perpective view of the same, with one of the punches removed, showing the slot in which it works the spring, &c. Fig. 3, is a perspective View of the movable punch, showing its form, and how it is to be connected with the working part. Figs. 4c and 5, are plans of the movable punch.

Our improvement consists in making an adjustable punch in such a manner that the pins in the mineral teethI will guide the punches so that they shall punch the holes in the plate to exactly correspond with the pins in the teeth.

We make the punch in any of the ordinary forms of plyers, or nippers, as shown in the drawings, or otherwise, having the levers, or bars, of suitable length to use the punches with ease in punching the plate.

We attach one punch, as a, Fig. 2, perma* nently to the jaw, to punch one of the holes as it enters the hole, b, in the other jaw. And we make the other punch as shown in Figs. 3, 4, and 5, and pass it into the slot, c, Fig. 2, and hold it in its position by a spring, d, as shown in Fig. 1, so that it may be adjustable by the yielding of the spring.

To use this punch we place one of the pins of the tooth into the hole, c, Fig. 2, and force out the movable punch, Fig. 3, far enough to allowthe other pin in the tooth to pass into the slot c, which will adjust the two punches to exactly the distance of the pins, so that when the plate is punched the holes in t-he plate will receive the pins with perfeet accuracy, in every case. This punch will be equally applicable for other analogous articles as well as teeth, where the pins may be at unequal distances in diiierent/ cases.

What we claim as our invention, and desire to secure by Letters Patent, is-

The combination of two punches, one immovable, the other, (Fig. 3,) movable in the slot (0,) with a spring, (d,) and the two cavities, one (6,) in the plug or immovable punch, and the other, (e) movable with the movable punch, the latter to be set by the inserting of the wires of the teeth into said cavities in order to make the distance between the holes in the plate correspond with the distance of the pins in the tooth, as herein described.

SAMUEL MALLETT. AUGUSTUS SMITH. 

